“…[1,4,10,24]). It is well known that the non-tangential area integral is a fundamental tool in complex analysis and harmonic analysis, which has many applications such as in the nontangential maximal functions, Littlewood-Paley theory, Volterra integral operators, and tent spaces (see, for instance, [9,10,[26][27][28]). The analysis of non-tangential area integral is developed from this.…”